3931345413 has 6 divisors (see below), whose sum is σ = 5678610054. Its totient is φ = 2620896936.

The previous prime is 3931345339. The next prime is 3931345447. The reversal of 3931345413 is 3145431393.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3741401889 + 189943524 = 61167^2 + 13782^2 .

It is not a de Polignac number, because 3931345413 - 2¹⁸ = 3931083269 is a prime.

It is a super-2 number, since 2×3931345413² = 30910953512632281138, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3931345213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 218408070 + ... + 218408087.

It is an arithmetic number, because the mean of its divisors is an integer number (946435009).

Almost surely, 2^3931345413 is an apocalyptic number.

It is an amenable number.

3931345413 is a deficient number, since it is larger than the sum of its proper divisors (1747264641).

3931345413 is a wasteful number, since it uses less digits than its factorization.

3931345413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436816163 (or 436816160 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 3931345413 is about 62700.4418883950. The cubic root of 3931345413 is about 1578.2667278408.

The spelling of 3931345413 in words is "three billion, nine hundred thirty-one million, three hundred forty-five thousand, four hundred thirteen".